- #1
yogi
- 1,525
- 10
The energy 'U' of a uniform spherical volume (e.g., a Hubble sphere) is (3/5)(M^2)G/R
Conventional wisdom has it that G and M are constant - at least in the preferred models that we are permitted to discuss on these forums. So when the Hubble sphere expands, we really don't expect a loss of energy. I would assume a universe expanding at constant velocity 'c' where the recessional rate and the Hubble rate are equal, would neither lose nor gain energy.
Conventional wisdom has it that G and M are constant - at least in the preferred models that we are permitted to discuss on these forums. So when the Hubble sphere expands, we really don't expect a loss of energy. I would assume a universe expanding at constant velocity 'c' where the recessional rate and the Hubble rate are equal, would neither lose nor gain energy.